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Ag Leader OnTrac3 MDU-G4 Installation Manual Download Page 24

22   

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ABLE

 H

ARNESS

 I

NSTALLATION

 P

ROCEDURE

The OnTrac3 GPS Assisted Steering System cable harness installation steps are described below. 
Follow them in order. This procedure assumes that you have connected your Steering Controller (ECU) 
to your Display Harness and Power. Refer to Steering Controller (ECU) documentation for further 
information.

1.  Connect the OnTrac3 to ECU Cable Harness 30 pin connector to the ECU and tighten the connector 
screw using a 1/4”nut driver. Tighten to 15 to 20 in-lbs (1.7 to 2.2Nm). Use only the recommended nut 
driver and do not over tighten.

2.  Connect the OnTrac3 Harness to the 
MDU-G4. Carefully align the circular 
connector against the mating connector 
under the MDU-G4 and rotate until it 
fits.  Then rotate the external sleeve 
clockwise to lock the connector.  To 
disassemble, rotate the outer connector 
sleeve counterclockwise.  Never force 
the connector

3.  Route the cables in such a way to prevent damage.

4.  Installation of the MDU-G4 is complete refer to the 
Steering Controller Operators Manual for vehicle setup 
and calibration and operation instructions. 

Summary of Contents for OnTrac3 MDU-G4

Page 1: ...OnTrac3 MDU G4 Installation Manual Ag Leader PN 2006237 Rev A NOVARIANT 602 0567 01 A ...

Page 2: ... 2014 Ag Leader Technology 2202 South Riverside Drive Ames Iowa 50010 USA ...

Page 3: ...MDU G4 Installation Procedure 10 Install the Main Gear on the Steering Wheel 10 Examine Steering Column and Steering wheel 11 Install Spacer If Needed 12 Install the Top Ring 12 Attach the Anti Rotation Pin 14 Install the MDU G4 15 Universal Bracket Installation 16 Universal Bracket Installation Kit Overview 16 Universal Bracket Installation Procedure 17 ECU S1 Installation 19 ECU S1 Orientation 1...

Page 4: ...2 ...

Page 5: ...own instructions so refer to those when directed for information on installing the sub kit parts Prior to operating and installing the OnTrac3 system be sure to read and understand the Steering Controller Operator s Manual that comes with the Steering Controller system That manual provides the instructions on how to operate the OnTrac3 system as well additional safety information LEGAL DISCLAIMER ...

Page 6: ...nents are present Never use replacement components Only use original components If there are any questions regarding the safe operation of the OnTrac3 GPS Assisted Steering System or the instructions in the manuals do not hesitate to always contact the responsible expert Always use the correct tools to install the OnTrac3 GPS Assisted Steering System Caution must be taken when installing the OnTra...

Page 7: ...stem WARNING ALERTS The OnTrac3 system installer and manufacturer disclaim any responsibility for damage or physical harm caused by the failure to adhere to the following safety requirements As the operator of the vehicle you are responsible for its safe operation The steering system is not designed to replace the vehicle s operator Note After the installation of the OnTrac3 system verify that all...

Page 8: ...riven and take over steering manually if an obstacle must be avoided CAUTION The OnTrac3 system does not control the speed of the vehicle The operator must manually adjust the speed of the vehicle to keep the vehicle safely under control CAUTION To avoid possible damage to electronic circuits caused by electrostatic discharge never touch the contacts on the ECU electrical connectors at any time CA...

Page 9: ...fe place for future reference TECHNICAL SUPPORT Contact your Ag Leader Dealer or Ag Leader Technology for technical support Telephone 515 232 5363 Email support agleader com VEHICLE INSPECTION Prior to installing the OnTrac3 system confirm that the vehicle and the vehicle s steering system are in good working order by driving it around In addition verify the following items Verify that you can tur...

Page 10: ...or a typical installation The installation kit is organized into a main kit that contains a switch kit subassembly The Switch Kit contains the hardware that enables you to switch the OnTrac3 system between vehicles The sub kits that are required for the installation of the OnTrac3 system are provided in this section Use this section to verify that all the sub kits and parts required for the instal...

Page 11: ...itch kit 126 0041 01 3 Anti Rotation Pin assembly 200 0752 01 4 Installation Guide MDU G4 602 0546 01 5 Operator s Manual OnTrac3 602 0559 01 6 OnTrac3 Control Unit 4100970 7 MDU G4 Harness 201 0603 01 8 OnTrac3 Control Unit Harness 201 0605 01 9 OnTrac3 Control Unit Bracket 200 0627 02 ...

Page 12: ...tion of the main gear on the steering wheel A completed installation is shown in Through the use of switch kits main gears can be installed and left on multiple vehicles allowing the user to move the MDU G4 Install the Main Gear around the Steering Column 1 Remove the 2 hex screws from the Smaller section of the Main Gear 2 Remove the Smaller section by pulling downwards Note Tolerances are tight ...

Page 13: ...y need to apply a drop of oil to assist in aligning the two gear sections 5 Reinstall and secure the 2 hex screws At this point the main gear is assembled around the steering column below the steering wheel The gear is free to move around and must now be clamped to the steering wheel Examine Steering Column and Steering wheel Examine the steering wheel underside to determine if a spacer is necessa...

Page 14: ... MDU G4 Install the Top Ring 1 The gear is free to move around and must be now clamped to the steering wheel This procedure will install and center the ring gear for typical 3 spoke shaped steering wheels 2 Place the top ring on top of the steering wheel and install a minimum of 6 hex screws Install a screw on each side of every spoke keeping the screws as close to the spokes as possible At this s...

Page 15: ...steering wheel and watching for off center movement of the main gear Repeat the centering process as necessary 5 Tighten the screws with an Allen key Torque to 6 in lb 0 7 Nm Tighten the screws in a cross pattern as opposed to tightening each screw in a clockwise or counter clockwise order Note Do not over tighten the top ring screws This may cause the ring gear to warp or damage the steering whee...

Page 16: ...e following when choosing an orientation Ease of installing anti rotation bracket Access to the Power Switch Avoid locations where a knee could accidently press the power switch Avoid blocking the vehicle s steering column controls and indicators Cable routing with minimal obstruction in the cab 2 Based on your preferred orientation choose one of three locations for the Anti rotation Pin ...

Page 17: ...in must always be kept tight to avoid breakage or separation Periodically check the anti rotation pin and confirm that it is tight Always tighten to the specified torque Install the MDU G4 This procedure describes the installation of the MDU G4 to the Main Gear 1 Open the MDU G4 release latch 2 Fit the MDU G4 around the Main Gear so that the three MDU G4 rollers align on the Main Gear race Note Th...

Page 18: ... different bracket may be required depending on your specific vehicle Contact your AutoSteer dealer for details Note If you are installing a vehicle specific anti rotation bracket skip this section and refer to the instruction manual provided with your vehicle specific anti rotation bracket kit UNIVERSAL BRACKET INSTALLATION KIT OVERVIEW To complete your MDU G4 installation and prevent the rotatio...

Page 19: ...tallation of the bracket kit Item Component Part Number Qty 1 Flange Bearing 522 0001 01 1 2 Fifth Wheel Slider 203 0218 01 1 3 Front Bracket 202 0216 01 1 4 Back Bracket V shape 202 0232 01 1 5 Clamping screws Machine Screw Phillips 1 4 20 x 4 Washers Lock Washers and Nuts 514 0088 01 4 6 Bolts 5 16 18 x 3 4 Slider Attaching Bolts 512 0029 01 2 ...

Page 20: ...lider bracket will require adjustment once installed on the steering column 3 Place the flange bearing assembly over anti rotation pin Note It is important that the anti rotation pin is placed through the flange bearing before attaching the Fifth Wheel Bracket 4 Attach the back bracket to the front bracket using the four machine screws clamping the steering column between the front and back bracke...

Page 21: ...nts that control steering performance while the vehicle is in motion in the field ECU S1 ORIENTATION Mounting the ECU S1 square with the vehicle will make entering the orientation in the vehicles setup menu easier The ECU S1 can be installed at an angle but it may make it more difficult to enter vehicle orientation ECU S1 INSTALLATION PROCEDURE 1 Install the ECU S1 on a flat level and rigid surfac...

Page 22: ...les hoses or other sensitive equipment on the opposite side of the plate before drilling 3 Secure the ECU S1 to the flat bracket using the four 8 32 screws provided 4 Tighten using a 1 4 nut driver or alternatively a flat screwdriver The ECU S1 has open slots on one side so you may first pre install two screws before attaching the unit To remove you may simply loosen two screws on one side and rem...

Page 23: ...ote To prevent the system from any unexpected shut down while operating check the cable insulation and cable connections to the other instruments Route the cables away from all sharp edges to prevent control wires from being pulled hard or damaged CABLE HARNESS CONNECTIONS OVERVIEW The typical Cable Harness installation includes these components ...

Page 24: ...ew using a 1 4 nut driver Tighten to 15 to 20 in lbs 1 7 to 2 2Nm Use only the recommended nut driver and do not over tighten 2 Connect the OnTrac3 Harness to the MDU G4 Carefully align the circular connector against the mating connector under the MDU G4 and rotate until it fits Then rotate the external sleeve clockwise to lock the connector To disassemble rotate the outer connector sleeve counter...

Page 25: ... that it is secure and all fasteners are tight Tighten as necessary Keep the Electronic Control Unit ECU and associated brackets well secured to the vehicle at all times Verify that the ECU is secure every 250 hours of operation or every six months whichever occurs first and tighten as necessary Do not operate the OnTrac3 system if the ECU is not well secured A detached ECU may cause sudden loss o...

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